laptop does not respond to keyboard or mouse input

[brad haack]

Dell Vostro 15 7510
:lsb_release -crid
Distributor ID: Ubuntu
Description: Ubuntu 21.10
Release: 21.10
Codename: impish

Sporadically the laptop does not respond to keyboard or mouse input. The cursor still shows up. This may be associated with waking up from suspend. I can still get to a terminal with Ctl-Fn-Alt-F1.
I see this in kern.log at about the time of the issue:

Jan 24 11:54:58 brad-dell kernel: [14615.288956] PM: suspend exit
Jan 24 11:55:02 brad-dell kernel: [14619.411849] wlp0s20f3: authenticate with 9c:3d:cf:71:af:77
Jan 24 11:55:02 brad-dell kernel: [14619.420838] wlp0s20f3: send auth to 9c:3d:cf:71:af:77 (try 1/3)
Jan 24 11:55:02 brad-dell kernel: [14619.502877] wlp0s20f3: authenticated
Jan 24 11:55:02 brad-dell kernel: [14619.505396] wlp0s20f3: associate with 9c:3d:cf:71:af:77 (try 1/3)
Jan 24 11:55:02 brad-dell kernel: [14619.511548] wlp0s20f3: RX AssocResp from 9c:3d:cf:71:af:77 (capab=0x11 status=0 aid=6)
Jan 24 11:55:02 brad-dell kernel: [14619.519475] wlp0s20f3: associated
Jan 24 11:55:02 brad-dell kernel: [14619.582017] IPv6: ADDRCONF(NETDEV_CHANGE): wlp0s20f3: link becomes ready
Jan 24 11:56:58 brad-dell kernel: [14735.585403] kauditd_printk_skb: 17 callbacks suppressed
Jan 24 11:56:58 brad-dell kernel: [14735.585409] audit: type=1400 audit(1643050618.988:28): apparmor="DENIED" operation="open" profile="/usr/sbin/cupsd" name="/proc/sys/kernel/osrelease" pid=714 comm="cupsd" requested_mask="r" denied_mask="r" fsuid=0 ouid=0
Jan 24 11:56:58 brad-dell kernel: [14735.585544] audit: type=1400 audit(1643050618.988:29): apparmor="DENIED" operation="open" profile="/usr/sbin/cupsd" name="/proc/1/environ" pid=714 comm="cupsd" requested_mask="r" denied_mask="r" fsuid=0 ouid=0
Jan 24 11:56:58 brad-dell kernel: [14735.585554] audit: type=1400 audit(1643050618.988:30): apparmor="DENIED" operation="open" profile="/usr/sbin/cupsd" name="/proc/cmdline" pid=714 comm="cupsd" requested_mask="r" denied_mask="r" fsuid=0 ouid=0
Jan 24 11:57:52 brad-dell kernel: [14788.932312] ACPI Error: Thread 3295223488 cannot release Mutex [ECMX] acquired by thread 3475299392 (20210331/exmutex-378)
Jan 24 11:57:52 brad-dell kernel: [14788.932333]
Jan 24 11:57:52 brad-dell kernel: [14788.932336] No Local Variables are initialized for Method [_Q66]
Jan 24 11:57:52 brad-dell kernel: [14788.932337]
Jan 24 11:57:52 brad-dell kernel: [14788.932339] No Arguments are initialized for method [_Q66]
Jan 24 11:57:52 brad-dell kernel: [14788.932340]
Jan 24 11:57:52 brad-dell kernel: [14788.932345] ACPI Error: Aborting method \_SB.PC00.LPCB.ECDV._Q66 due to previous error (AE_AML_NOT_OWNER) (20210331/psparse-529)

[brad haack (bradhaack-g)]

If xfce screensaver lock screen is disabled, the issue goes away. When enabled it comes back

[Ubuntu Foundations Team Bug Bot (crichton)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that your bug report is not filed about a specific source package though, rather it is just filed against Ubuntu in general. It is important that bug reports be filed about source packages so that people interested in the package can find the bugs about it. You can find some hints about determining what package your bug might be about at https://wiki.ubuntu.com/Bugs/FindRightPackage. You might also ask for help in the #ubuntu-bugs irc channel on Freenode.

To change the source package that this bug is filed about visit https://bugs.launchpad.net/ubuntu/+bug/1958934/+editstatus and add the package name in the text box next to the word Package.

[This is an automated message. I apologize if it reached you inappropriately; please just reply to this message indicating so.]

[CarbonPepper (carbonpepper)]

Try typing password into unresponsive screen

I have a similar scenario 21.10, when waking from suspend by opening laptop lid, the desktop is visible, the cursor displays, but clicks and typing do nothing.

However if I type my password the system becomes usable. I.e. the lock is in effect, but the box to type password is invisible.